Thats a simplistic view. Re: Sliders, You have been presented with several reasons why people prefer sliders as an option.
Regarding off ball movement, OBM is a fundamental part of basketball. NBA teams dont stand around and stay in one place so you shouldnt need an option to make them do something that they should do. Thats like having an option for stealing or rebounding.
You are just arguing for the sake of arguing at this point. It takes a second of analysis to realize these are two different situations.